Update coverage LLVM IR test

This uses comdats since LLVM 13, causing various minor changes to the
output.

Author: nikic

src/test/run-make-fulldeps/coverage-llvmir/filecheck.testprog.txt

@@ -12,26 +12,25 @@ CHECK-SAME:   section "[[INSTR_PROF_COVMAP]]", align 8
 WINDOWS:      @__llvm_profile_runtime = external global i32
 
 CHECK:        @__profc__R{{[a-zA-Z0-9_]+}}testprog14will_be_called = [[PRIVATE_GLOBAL]]
-CHECK-SAME:   section "[[INSTR_PROF_CNTS]]", align 8
+CHECK-SAME:   section "[[INSTR_PROF_CNTS]]"{{.*}}, align 8
 
 CHECK:        @__profd__R{{[a-zA-Z0-9_]+}}testprog14will_be_called = [[PRIVATE_GLOBAL]]
 CHECK-SAME:   @__profc__R{{[a-zA-Z0-9_]+}}testprog14will_be_called,
-CHECK-SAME:   section "[[INSTR_PROF_DATA]]", align 8
+CHECK-SAME:   section "[[INSTR_PROF_DATA]]"{{.*}}, align 8
 
 CHECK:        @__profc__R{{[a-zA-Z0-9_]+}}testprog4main = [[PRIVATE_GLOBAL]]
-CHECK-SAME:   section "[[INSTR_PROF_CNTS]]", align 8
+CHECK-SAME:   section "[[INSTR_PROF_CNTS]]"{{.*}}, align 8
 
 CHECK:        @__profd__R{{[a-zA-Z0-9_]+}}testprog4main = [[PRIVATE_GLOBAL]]
 CHECK-SAME:   @__profc__R{{[a-zA-Z0-9_]+}}testprog4main,
-CHECK-SAME:   section "[[INSTR_PROF_DATA]]", align 8
+CHECK-SAME:   section "[[INSTR_PROF_DATA]]"{{.*}}, align 8
 
 CHECK:        @__llvm_prf_nm = private constant
 CHECK-SAME:   section "[[INSTR_PROF_NAME]]", align 1
 
 CHECK:        @llvm.used = appending global
 CHECK-SAME:   i8* bitcast ({ {{.*}} }* @__llvm_coverage_mapping to i8*)
 WINDOWS-SAME: i8* bitcast (i32 ()* @__llvm_profile_runtime_user to i8*)
-CHECK-SAME:   i8* bitcast ({ {{.*}} }* @__profd__R{{[a-zA-Z0-9_]*}}testprog4main to i8*)
 CHECK-SAME:   i8* getelementptr inbounds ({{.*}}* @__llvm_prf_nm, i32 0, i32 0)
 CHECK-SAME:   section "llvm.metadata"