Merge pull request swiftlang#9224 from felipepiovezan/felipe/erro_msg_tests

[lldb] Update text error messages

Author: felipepiovezan

lldb/test/API/lang/swift/playgrounds-repl/invalid_input/TestInvalidInput.py

@@ -47,7 +47,7 @@ def do_test(self):
         self.assertTrue(is_error)
         error = self.get_stream_data(result)
         self.assertIn("left side of mutating operator", error, "Error messages do not match")
-        self.assertIn(":15:3: error: left side of mutating operator", error, "Error line number does not match")
+        self.assertIn(":15:3: left side of mutating operator", error, "Error line number does not match")
 
         # Execute revised block
         result, output = self.execute_code("Input3.swift")

lldb/test/Shell/SwiftREPL/LookupWithAttributedImport.test

@@ -15,7 +15,7 @@ let y = Bar(baz: 123)
 // CHECK: baz = 123
 
 let x = Foo(bar:42)
-// CHECK: repl.swift:{{.*}}: error: cannot find 'Foo' in scope
+// CHECK: repl.swift:{{.*}}: cannot find 'Foo' in scope
 
 @testable import Test