Review the usage of apostrophes in error messages

Additionally, fixing some capitalization problems and wordings.

Author: kocsismate

Zend/tests/018.phpt

@@ -18,7 +18,7 @@ var_dump(constant("TEST_CONST2"));
 echo "Done\n";
 ?>
 --EXPECT--
-Undefined constant ''
+Undefined constant 
 int(1)
 string(4) "test"
 Done

Zend/tests/access_modifiers_010.phpt

@@ -28,7 +28,7 @@ new c;
 
 ?>
 --EXPECTF--
-Fatal error: Uncaught Error: Call to private method d::test2() from context 'a' in %s:%d
+Fatal error: Uncaught Error: Call to private method d::test2() from context "a" in %s:%d
 Stack trace:
 #0 %s(%d): a->test()
 #1 %s(%d): c->__construct()

Zend/tests/array_unpack/classes.phpt

@@ -43,4 +43,4 @@ array(3) {
   [2]=>
   int(3)
 }
-Exception: Cannot declare self-referencing constant 'self::B'
+Exception: Cannot declare self-referencing constant self::B

Zend/tests/bug29015.phpt

@@ -15,7 +15,7 @@ object(stdClass)#1 (1) {
   string(10) "string('')"
 }
 
-Fatal error: Uncaught Error: Cannot access property started with '\0' in %s:%d
+Fatal error: Uncaught Error: Cannot access property starting with "\0" in %s:%d
 Stack trace:
 #0 {main}
   thrown in %s on line %d

Zend/tests/bug37632.phpt

@@ -132,7 +132,7 @@ B2::doTest
 C2::test
 B4::doTest
 
-Fatal error: Uncaught Error: Call to protected C4::__construct() from context 'B4' in %sbug37632.php:%d
+Fatal error: Uncaught Error: Call to protected C4::__construct() from context "B4" in %s:%d
 Stack trace:
 #0 %s(%d): B4::doTest()
 #1 {main}

Zend/tests/bug37811.phpt

@@ -23,7 +23,7 @@ string(3) "Foo"
 
 Warning: Constants may only evaluate to scalar values, arrays or resources in %sbug37811.php on line %d
 
-Fatal error: Uncaught Error: Undefined constant 'Baz' in %s:%d
+Fatal error: Uncaught Error: Undefined constant Baz in %s:%d
 Stack trace:
 #0 {main}
   thrown in %s on line %d

Zend/tests/bug41633_2.phpt

@@ -8,7 +8,7 @@ class Foo {
 echo Foo::A."\n";
 ?>
 --EXPECTF--
-Fatal error: Uncaught Error: Undefined class constant 'self::B' in %sbug41633_2.php:5
+Fatal error: Uncaught Error: Undefined class constant self::B in %s:%d
 Stack trace:
 #0 {main}
   thrown in %sbug41633_2.php on line 5

Zend/tests/bug41633_3.phpt

@@ -9,7 +9,7 @@ class Foo {
 echo Foo::A;
 ?>
 --EXPECTF--
-Fatal error: Uncaught Error: Cannot declare self-referencing constant 'Foo::B' in %sbug41633_3.php:%d
+Fatal error: Uncaught Error: Cannot declare self-referencing constant Foo::B in %s:%d
 Stack trace:
 #0 {main}
   thrown in %sbug41633_3.php on line %d

Zend/tests/bug42819.phpt

@@ -297,7 +297,7 @@ Array
     [1] => 1
 )
 
-Fatal error: Uncaught Error: Undefined constant 'foo\foo\unknown' in %sbug42819.php:%d
+Fatal error: Uncaught Error: Undefined constant foo\foo\unknown in %s:%d
 Stack trace:
 #0 %s(%d): foo\oops()
 #1 {main}

Zend/tests/bug43344_1.phpt

@@ -39,7 +39,7 @@ try {
 
 ?>
 --EXPECT--
-Undefined constant 'Foo\bar'
-Undefined constant 'Foo\bar'
-Undefined constant 'Foo\bar'
-Undefined constant 'Foo\bar'
+Undefined constant Foo\bar
+Undefined constant Foo\bar
+Undefined constant Foo\bar
+Undefined constant Foo\bar