Update expected diagnostic results for continue/break statements

tests/cases/parser/breakStatement5.php.diag

@@ -1,7 +1,7 @@
 [
     {
         "kind": 0,
-        "message": "Expected positive integer literal.",
+        "message": "Positive integer literal expected.",
         "start": 128,
         "length": 3
     }

tests/cases/parser/breakStatement6.php.diag

@@ -1,7 +1,7 @@
 [
     {
         "kind": 0,
-        "message": "Expected positive integer literal.",
+        "message": "Positive integer literal expected.",
         "start": 128,
         "length": 1
     }

tests/cases/parser/breakStatement9.php.diag

@@ -1,7 +1,7 @@
 [
     {
         "kind": 0,
-        "message": "Expected positive integer literal.",
+        "message": "Positive integer literal expected.",
         "start": 70,
         "length": 3
     },

tests/cases/parser/continueStatement5.php.diag

@@ -1,7 +1,7 @@
 [
     {
         "kind": 0,
-        "message": "Expected positive integer literal.",
+        "message": "Positive integer literal expected.",
         "start": 131,
         "length": 3
     }

tests/cases/parser/continueStatement6.php.diag

@@ -1,7 +1,7 @@
 [
     {
         "kind": 0,
-        "message": "Expected positive integer literal.",
+        "message": "Positive integer literal expected.",
         "start": 131,
         "length": 1
     }

tests/cases/parser/continueStatement9.php.diag

@@ -1,7 +1,7 @@
 [
     {
         "kind": 0,
-        "message": "Expected positive integer literal.",
+        "message": "Positive integer literal expected.",
         "start": 73,
         "length": 3
     },