VM doesn't treat strings as canonicalized in const expressions.

[lrhn]

Example:
const i = identical("ab", "a" + "b");
print(i); // false

This should print "true" - both "ab" and "a"+"b" are compile-time constant expressions, and so is calling identical on them. The result of a compile-time constant identical call on two compile-time constant strings should be true if the strings are equal.

It seems to be a problem with String.+. Other ways to dynamically build the string do not have the same problem:
const j = identical("ab", "${"a"}${"b"}");
print(j); // true

[mhausner]

Committed patchset #2 (id:20001) manually as
11a101a