Bump to mono/mono@29b1ac19 (#3449) (#3597)

Changes: http://github.com/mono/mono/compare/2c3aeaf3780de7392a0d3cbe4dcf86846eb4dffa...29b1ac19c961b959a09097dbc0fe4cd567cc5298

	$ git diff --shortstat 2c3aeaf3..29b1ac19
	 1528 files changed, 45421 insertions(+), 21967 deletions(-)

Changes: mono/api-doc-tools@d03e819...5da8127

	$ git diff --shortstat d03e8198..5da8127a
	 1001 files changed, 86168 insertions(+), 11863 deletions(-)

Changes: mono/api-snapshot@e09042d...1ca8e82

	$ git diff --shortstat e09042da..1ca8e82f
        28 files changed, 612 insertions(+), 217 deletions(-)

Changes: dotnet/cecil@a6c8f5e...cb6c1ca

	$ git diff --shortstat a6c8f5e1..cb6c1ca9
	 13 files changed, 233 insertions(+), 88 deletions(-)

Changes: mono/corefx@4806207...470e0e1

	$ git diff --shortstat 4806207f...470e0e10
	 4 files changed, 31 insertions(+), 12 deletions(-)

Changes: dotnet/linker@ebe2a1f...1f87de3

	$ git diff --shortstat ebe2a1f4...1f87de35
	 90 files changed, 3219 insertions(+), 1224 deletions(-)

Changes: dotnet/java-interop@75b1189...4fd3539

	$ git diff --shortstat 75b11891...4fd35393
	 34 files changed, 448 insertions(+), 52 deletions(-)

Fixes: #3112
Fixes: #3168

Context: https://bugs.winehq.org/show_bug.cgi?id=47561
Context: https://devdiv.visualstudio.com/DefaultCollection/DevDiv/_workitems/edit/967582
Context: https://github.com/dotnet/coreclr/issues/25071
Context: https://github.com/dotnet/coreclr/issues/25242
Context: https://github.com/dotnet/coreclr/issues/25632
Context: https://github.com/dotnet/coreclr/issues/25709
Context: https://github.com/dotnet/corefx/issues/37955
Context: https://github.com/dotnet/corefx/issues/38455
Context: mono/mono#7377
Context: mono/mono#8747
Context: mono/mono#9621
Context: mono/mono#9664
Context: mono/mono#9706
Context: mono/mono#10201
Context: mono/mono#10645
Context: mono/mono#10748
Context: mono/mono#10848
Context: mono/mono#12141
Context: mono/mono#13311
Context: mono/mono#13408
Context: mono/mono#13412
Context: mono/mono#13891
Context: mono/mono#13923
Context: mono/mono#13945
Context: mono/mono#14170
Context: mono/mono#14214
Context: mono/mono#14214
Context: mono/mono#14215
Context: mono/mono#14243
Context: mono/mono#14377
Context: mono/mono#14495
Context: mono/mono#14555
Context: mono/mono#14724
Context: mono/mono#14729
Context: mono/mono#14772
Context: mono/mono#14792
Context: mono/mono#14793
Context: mono/mono#14809
Context: mono/mono#14830
Context: mono/mono#14839
Context: mono/mono#14841
Context: mono/mono#14847
Context: mono/mono#14864
Context: mono/mono#14871
Context: mono/mono#14917
Context: mono/mono#14945
Context: mono/mono#14946
Context: mono/mono#14948
Context: mono/mono#14957
Context: mono/mono#14959
Context: mono/mono#14960
Context: mono/mono#14961
Context: mono/mono#14963
Context: mono/mono#14971
Context: mono/mono#14972
Context: mono/mono#14975
Context: mono/mono#15023
Context: mono/mono#15048
Context: mono/mono#15058
Context: mono/mono#15080
Context: mono/mono#15182
Context: mono/mono#15188
Context: mono/mono#15189
Context: mono/mono#15261
Context: mono/mono#15262
Context: mono/mono#15263
Context: mono/mono#15265
Context: mono/mono#15268
Context: mono/mono#15307
Context: mono/mono#15324
Context: mono/mono#15329
Context: mono/mono#15330
Context: mono/mono#15441
Context: mono/mono#15446
Context: mono/mono#15503
Context: mono/mono#15541
Context: mono/mono#15551
Context: mono/mono#15556
Context: mono/mono#15596
Context: mono/mono#15691
Context: mono/mono#15692
Context: mono/mono#15740
Context: mono/mono#15751
Context: mono/mono#15760
Context: mono/mono#15781
Context: mono/mono#15794
Context: mono/mono#15825
Context: mono/mono#15853
Context: mono/mono#15878
Context: mono/mono#15887
Context: mono/mono#15990
Context: mono/mono#16032
Context: mono/mono#16411
Context: mono/mono#16486
Context: https://github.com/mono/mono/issues/25709
Context: https://github.com/mono/mono/issues/38821

Update `build-tools/automation/build.groovy` so that it fully cleans
the build tree before starting the build, so that the vestigial mono
submodule (removed in 0c9f83b) is *actually* removed from the build
tree, so that we don't inadvertently use *ancient* submodule contents.

.external

@@ -1,2 +1,2 @@
 xamarin/monodroid:d16-4@6f1e0752acdd8ffd250793b84a9c8bc99fa642c8
-mono/mono:2019-06@2c3aeaf3780de7392a0d3cbe4dcf86846eb4dffa
+mono/mono:2019-08@29b1ac19c961b959a09097dbc0fe4cd567cc5298

Configuration.props

@@ -79,10 +79,10 @@
     <AndroidSupportedTargetJitAbis Condition=" '$(AndroidSupportedTargetJitAbis)' == '' ">armeabi-v7a:arm64-v8a:x86</AndroidSupportedTargetJitAbis>
     <JavaInteropSourceDirectory Condition=" '$(JavaInteropSourceDirectory)' == '' ">$(MSBuildThisFileDirectory)external\Java.Interop</JavaInteropSourceDirectory>
     <MonoSourceDirectory>$(MSBuildThisFileDirectory)external\mono</MonoSourceDirectory>
-    <MonoRequiredMinimumVersion Condition=" '$(MonoRequiredMinimumVersion)' == '' ">6.4.0</MonoRequiredMinimumVersion>
-    <MonoRequiredMaximumVersion Condition=" '$(MonoRequiredMaximumVersion)' == '' ">6.5.0</MonoRequiredMaximumVersion>
+    <MonoRequiredMinimumVersion Condition=" '$(MonoRequiredMinimumVersion)' == '' ">6.6.0</MonoRequiredMinimumVersion>
+    <MonoRequiredMaximumVersion Condition=" '$(MonoRequiredMaximumVersion)' == '' ">6.7.0</MonoRequiredMaximumVersion>
     <IgnoreMaxMonoVersion Condition=" '$(IgnoreMaxMonoVersion)' == '' ">True</IgnoreMaxMonoVersion>
-    <MonoRequiredDarwinMinimumVersion>$(MonoRequiredMinimumVersion).98</MonoRequiredDarwinMinimumVersion>
+    <MonoRequiredDarwinMinimumVersion>$(MonoRequiredMinimumVersion).54</MonoRequiredDarwinMinimumVersion>
     <LinkerSourceDirectory>$(MSBuildThisFileDirectory)external\mono\sdks\out\android-sources\external\linker\src</LinkerSourceDirectory>
     <OpenTKSourceDirectory>$(MSBuildThisFileDirectory)external\opentk</OpenTKSourceDirectory>
     <MingwZlibRootDirectory Condition=" '$(ZlibRootDirectory)' == '' And '$(HostOS)' == 'Linux' ">\usr</MingwZlibRootDirectory>

build-tools/automation/build.groovy

@@ -146,6 +146,12 @@ timestamps {
                 sh "rm -rf ${packagePath}"
             }
 
+            sh "git clean -xdff"
+            sh "git submodule foreach --recursive git clean -xdff"
+            sh "git submodule foreach --recursive git reset --hard HEAD"
+            sh "git submodule sync"
+            sh "git submodule update --recursive --init --force"
+
             sh "mkdir -p ${packagePath}"
         }