This patch to the Go frontend by Cherry Zhang fixes int-to-string conversion with large integer constants.
Currently, the type conversion code thinks the int-to-string conversion is constant if the integer operand is constant, but it actually generates a call to runtime.intstring if the integer does not fit in a "ushort", which makes it not suitable in constant context, such as static initializer. This patch makes it handle all constant integer input as constants, generating a constant string. This fixes https://golang.org/issue/32347. Bootstrapped and ran Go testsuite on x86_64-pc-linux-gnu. Committed to mainline. I am unable to attach the actual patch, as GMail rejects it for some unknown reason. To see the patch, please see https://golang.org/cl/179777 or https://gcc.gnu.org/viewcvs/gcc?view=revision&revision=271821 Ian
