[NFC][clang] Inclusive language: rename master variable to controller in debug-info tests

[NFC] As part of using inclusive language within the llvm project, this patch
replaces master with controller in these tests.

Reviewed By: rjmccall

Differential Revision: https://reviews.llvm.org/D114108

clang/test/CodeGenObjC/debug-info-block-helper.m

@@ -12,17 +12,17 @@ extern void foo(void(^)(void));
 @interface A:NSObject @end
 @implementation A
 - (void) helper {
- int master = 0;
+ int controller = 0;
  __block int m2 = 0;
  __block int dbTransaction = 0;
  int (^x)(void) = ^(void) { (void) self; 
-	(void) master; 
+	(void) controller; 
 	(void) dbTransaction; 
 	m2++;
 	return m2;
 
 	};
-  master = x();
+  controller = x();
 }
 @end
 

cross-project-tests/debuginfo-tests/llgdb-tests/blocks.m

@@ -11,7 +11,7 @@
 // CHECK: ${{[0-9]}} = 1
 // DEBUGGER: p dbTransaction
 // CHECK: ${{[0-9]}} = 0
-// DEBUGGER: p master
+// DEBUGGER: p controller
 // CHECK: ${{[0-9]}} = 0
 
 #include <Cocoa/Cocoa.h>
@@ -21,16 +21,16 @@ extern void foo(void(^)(void));
 @interface A:NSObject @end
 @implementation A
 - (void) helper {
- int master = 0;
+ int controller = 0;
  __block int m2 = 0;
  __block int dbTransaction = 0;
  int (^x)(void) = ^(void) { (void) self; 
-	(void) master; 
+	(void) controller; 
 	(void) dbTransaction; 
 	m2++;
 	return m2;
 	};
-  master = x();
+  controller = x();
 }
 @end