Renamed amrClaim to AMRClaim to follow Google's Obj-c guideline for names starting with Acronyms

Author: AkshatG6

GoogleSignIn/Sources/GIDClaim.m

@@ -49,7 +49,7 @@ + (instancetype)essentialAuthTimeClaim {
   return [[self alloc] initWithName:kAuthTimeClaimName essential:YES];
 }
 
-+ (instancetype)amrClaim {
++ (instancetype)AMRClaim {
   return [[self alloc] initWithName:kAMRClaimName essential:NO];
 }
 

GoogleSignIn/Sources/Public/GoogleSignIn/GIDClaim.h

@@ -44,7 +44,7 @@ extern NSString *const kAMRClaimName;
 + (instancetype)essentialAuthTimeClaim;
 
 /// Creates a *non-essential* (voluntary) "amr" claim object.
-+ (instancetype)amrClaim;
++ (instancetype)AMRClaim;
 
 /// Creates an *essential* "amr" claim object.
 + (instancetype)essentialAMRClaim;

GoogleSignIn/Tests/Unit/GIDClaimTest.m

@@ -34,7 +34,7 @@ - (void)testEssentialAuthTimeClaim_PropertiesAreCorrect {
 }
 
 - (void)testAMRClaim_PropertiesAreCorrect {
-  GIDClaim *claim = [GIDClaim amrClaim];
+  GIDClaim *claim = [GIDClaim AMRClaim];
   XCTAssertEqualObjects(claim.name, kAMRClaimName);
   XCTAssertFalse(claim.isEssential);
 }