Remove //@ ignore-windows-gnu from tests that need the profiler runtime

The profiler runtime is no longer built in mingw test jobs, so these tests
should naturally be skipped by `//@ needs-profiler-support`.

Author: Zalathar

src/tools/compiletest/src/header.rs

@@ -947,9 +947,6 @@ fn iter_header(
     if mode == Mode::CoverageRun {
         let extra_directives: &[&str] = &[
             "needs-profiler-support",
-            // FIXME(mati865): MinGW GCC miscompiles compiler-rt profiling library but with Clang it works
-            // properly. Since we only have GCC on the CI ignore the test for now.
-            "ignore-windows-gnu",
             // FIXME(pietroalbini): this test currently does not work on cross-compiled
             // targets because remote-test is not capable of sending back the *.profraw
             // files generated by the LLVM instrumentation.

tests/run-make/optimization-remarks-dir-pgo/Makefile

@@ -1,10 +1,6 @@
 # needs-profiler-support
-# ignore-windows-gnu
 # ignore-cross-compile
 
-# FIXME(mati865): MinGW GCC miscompiles compiler-rt profiling library but with Clang it works
-# properly. Since we only have GCC on the CI ignore the test for now.
-
 include ../tools.mk
 
 PROFILE_DIR=$(TMPDIR)/profiles

tests/run-make/pgo-branch-weights/Makefile

@@ -1,10 +1,6 @@
 # needs-profiler-support
-# ignore-windows-gnu
 # ignore-cross-compile
 
-# FIXME(mati865): MinGW GCC miscompiles compiler-rt profiling library but with Clang it works
-# properly. Since we only have GCC on the CI ignore the test for now.
-
 include ../tools.mk
 
 # For some very small programs GNU ld seems to not properly handle

tests/run-make/pgo-gen-lto/Makefile

@@ -1,10 +1,6 @@
 # needs-profiler-support
-# ignore-windows-gnu
 # ignore-cross-compile
 
-# FIXME(mati865): MinGW GCC miscompiles compiler-rt profiling library but with Clang it works
-# properly. Since we only have GCC on the CI ignore the test for now.
-
 include ../tools.mk
 
 COMPILE_FLAGS=-Copt-level=3 -Clto=fat -Cprofile-generate="$(TMPDIR)"

tests/run-make/pgo-gen/Makefile

@@ -1,10 +1,6 @@
 # needs-profiler-support
-# ignore-windows-gnu
 # ignore-cross-compile
 
-# FIXME(mati865): MinGW GCC miscompiles compiler-rt profiling library but with Clang it works
-# properly. Since we only have GCC on the CI ignore the test for now.
-
 include ../tools.mk
 
 COMPILE_FLAGS=-g -Cprofile-generate="$(TMPDIR)"

tests/run-make/pgo-indirect-call-promotion/Makefile

@@ -1,10 +1,6 @@
 # needs-profiler-support
-# ignore-windows-gnu
 # ignore-cross-compile
 
-# FIXME(mati865): MinGW GCC miscompiles compiler-rt profiling library but with Clang it works
-# properly. Since we only have GCC on the CI ignore the test for now.
-
 include ../tools.mk
 
 all:

tests/run-make/pgo-use/Makefile

@@ -1,10 +1,6 @@
 # needs-profiler-support
-# ignore-windows-gnu
 # ignore-cross-compile
 
-# FIXME(mati865): MinGW GCC miscompiles compiler-rt profiling library but with Clang it works
-# properly. Since we only have GCC on the CI ignore the test for now.
-
 include ../tools.mk
 
 # This test makes sure that PGO profiling data leads to cold functions being

tests/run-make/track-pgo-dep-info/Makefile

@@ -1,5 +1,4 @@
 # needs-profiler-support
-# ignore-windows-gnu
 
 include ../tools.mk