fix typo to be CHECK-LABEL:

Author: banjun

test/SIL/Parser/basic2.sil

@@ -154,7 +154,7 @@ bb0:
 
 // CHECK-LABEL: sil [ossa] @test_beginborrow_parsing :
 // CHECK:   %1 = begin_borrow [pointer_escape] %0 : $Builtin.NativeObject
-// CHECK-LABE: } // end sil function 'test_beginborrow_parsing'
+// CHECK-LABEL: } // end sil function 'test_beginborrow_parsing'
 sil [ossa] @test_beginborrow_parsing : $@convention(thin) (@owned Builtin.NativeObject) -> () {
 bb0(%0 : @owned $Builtin.NativeObject):
   %1 = begin_borrow [pointer_escape] %0 : $Builtin.NativeObject

test/stmt/typed_throws_ast.swift

@@ -41,7 +41,7 @@ func throwsAnything() throws {
 func doesNotThrow() { }
 
 func throwsNothing() {
-  // CHECK-LABE: func_decl{{.*}}"throwsNothing()"
+  // CHECK-LABEL: func_decl{{.*}}"throwsNothing()"
 
   // CHECK: force_try_expr{{.*}}thrown_error="Never"
   try! doesNotThrow()