When generating XCOFF, the compiler generates a csect with an internal
name. Each function results in a label within the csect. This patch
replaces the internal name ".text" with an empty string "". This avoids
adding special code to handle a function text() in the source file, and
works better with some XCOFF tools that are confused when the csect and
the first function have the same address.
Reviewed By: hubert.reinterpretcast
Differential Revision: https://reviews.llvm.org/D154854
Summary: AIX XCOFF doesn't support the cold feature.
While it shouldn't be a function error when XCOFF catching the cold attribute.
As with the behavior of other formats, we just ignore the attribute for now.
Reviewed By: DiggerLin
Differential Revision: https://reviews.llvm.org/D131473
