[test] NFC, add missing declarations and include to test files to avoid 'implicit-function-declaration' diagnostics in the tests

Author: hyp

clang-tools-extra/test/clang-tidy/checkers/darwin-avoid-spinlock.m

@@ -2,6 +2,10 @@
 
 typedef int OSSpinLock;
 
+void OSSpinlockLock(OSSpinLock *l);
+void OSSpinlockTry(OSSpinLock *l);
+void OSSpinlockUnlock(OSSpinLock *l);
+
 @implementation Foo
 - (void)f {
     int i = 1;

compiler-rt/test/profile/Inputs/instrprof-gcov-__gcov_flush-multiple.c

@@ -1,3 +1,5 @@
+extern void __gcov_flush();
+extern int remove(const char *);
 int main(void) {
   __gcov_flush();
 

compiler-rt/test/profile/Inputs/instrprof-gcov-__gcov_flush-multiple.c.gcov

@@ -3,19 +3,21 @@
 // CHECK-NEXT:        -:    0:Data:instrprof-gcov-__gcov_flush-multiple.gcda
 // CHECK-NEXT:        -:    0:Runs:1
 // CHECK-NEXT:        -:    0:Programs:1
-// CHECK-NEXT:    #####:    1:int main(void) {
-// CHECK-NEXT:    #####:    2:  __gcov_flush();
-// CHECK-NEXT:        -:    3:
-// CHECK-NEXT:    #####:    4:  if (remove("instrprof-gcov-__gcov_flush-multiple.gcda") != 0) {
-// CHECK-NEXT:    #####:    5:    return 1;
-// CHECK-NEXT:        -:    6:  }
-// CHECK-NEXT:        -:    7:
-// CHECK-NEXT:    #####:    8:  __gcov_flush();
-// CHECK-NEXT:    #####:    9:  __gcov_flush();
-// CHECK-NEXT:        -:   10:
-// CHECK-NEXT:    #####:   11:  if (remove("instrprof-gcov-__gcov_flush-multiple.gcda") != 0) {
-// CHECK-NEXT:    #####:   12:    return 1;
-// CHECK-NEXT:        -:   13:  }
-// CHECK-NEXT:        -:   14:
-// CHECK-NEXT:        1:   15:  return 0;
-// CHECK-NEXT:        1:   16:}
+// CHECK-NEXT:        -:    1:extern void __gcov_flush();
+// CHECK-NEXT:        -:    2:extern int remove(const char *);
+// CHECK-NEXT:    #####:    3:int main(void) {
+// CHECK-NEXT:    #####:    4:  __gcov_flush();
+// CHECK-NEXT:        -:    5:
+// CHECK-NEXT:    #####:    6:  if (remove("instrprof-gcov-__gcov_flush-multiple.gcda") != 0) {
+// CHECK-NEXT:    #####:    7:    return 1;
+// CHECK-NEXT:        -:    8:  }
+// CHECK-NEXT:        -:    9:
+// CHECK-NEXT:    #####:   10:  __gcov_flush();
+// CHECK-NEXT:    #####:   11:  __gcov_flush();
+// CHECK-NEXT:        -:   12:
+// CHECK-NEXT:    #####:   13:  if (remove("instrprof-gcov-__gcov_flush-multiple.gcda") != 0) {
+// CHECK-NEXT:    #####:   14:    return 1;
+// CHECK-NEXT:        -:   15:  }
+// CHECK-NEXT:        -:   16:
+// CHECK-NEXT:        1:   17:  return 0;
+// CHECK-NEXT:        1:   18:}

compiler-rt/test/profile/instrprof-value-prof.c

@@ -27,6 +27,7 @@
 #include <stdint.h>
 #include <stdio.h>
 #include <stdlib.h>
+#include <string.h>
 typedef struct __llvm_profile_data __llvm_profile_data;
 const __llvm_profile_data *__llvm_profile_begin_data(void);
 const __llvm_profile_data *__llvm_profile_end_data(void);