Drop name magic from rebuildParser.php

Now using explicitly imported names, instead of magically
prepending Name\.

Also remove trailing whitespace from generated file.

grammar/kmyacc.php.parser

@@ -4,9 +4,9 @@ $meta #
 #semval($,%t) $this->semValue
 #semval(%n) $this->stackPos-(%l-%n)
 #semval(%n,%t) $this->stackPos-(%l-%n)
-#include;
 
 namespace PhpParser;
+#include;
 
 /* This is an automatically GENERATED file, which should not be manually edited.
  * Instead edit one of the following:

grammar/rebuildParser.php

@@ -39,7 +39,6 @@ echo 'Building temporary preproprocessed grammar file.', "\n";
 
 $grammarCode = file_get_contents($grammarFile);
 
-$grammarCode = resolveConstants($grammarCode);
 $grammarCode = resolveNodes($grammarCode);
 $grammarCode = resolveMacros($grammarCode);
 $grammarCode = resolveArrays($grammarCode);
@@ -53,7 +52,12 @@ echo "Building parser.\n";
 $output = trim(shell_exec("$kmyacc $additionalArgs -l -m $skeletonFile $tmpGrammarFile 2>&1"));
 echo "Output: \"$output\"\n";
 
-moveFileWithDirCheck($tmpResultFile, $parserResultFile);
+$resultCode = file_get_contents($tmpResultFile);
+$resultCode = removeTrailingWhitespace($resultCode);
+
+ensureDirExists(dirname($parserResultFile));
+file_put_contents($parserResultFile, $resultCode);
+unlink($tmpResultFile);
 
 if (!$optionKeepTmpGrammar) {
     unlink($tmpGrammarFile);
@@ -63,10 +67,6 @@ if (!$optionKeepTmpGrammar) {
 /// Preprocessing functions ///
 ///////////////////////////////
 
-function resolveConstants($code) {
-    return preg_replace('~[A-Z][a-zA-Z_\\\\]++::~', 'Node\\\\$0', $code);
-}
-
 function resolveNodes($code) {
     return preg_replace_callback(
         '~(?<name>[A-Z][a-zA-Z_\\\\]++)\s*' . PARAMS . '~',
@@ -84,7 +84,7 @@ function resolveNodes($code) {
                 $paramCode .= $param . ', ';
             }
 
-            return 'new Node\\' . $matches['name'] . '(' . $paramCode . 'attributes())';
+            return 'new ' . $matches['name'] . '(' . $paramCode . 'attributes())';
         },
         $code
     );
@@ -197,12 +197,16 @@ function resolveStackAccess($code) {
     return $code;
 }
 
-function moveFileWithDirCheck($fromPath, $toPath) {
-    $dir = dirname($toPath);
+function removeTrailingWhitespace($code) {
+    $lines = explode("\n", $code);
+    $lines = array_map('rtrim', $lines);
+    return implode("\n", $lines);
+}
+
+function ensureDirExists($dir) {
     if (!is_dir($dir)) {
         mkdir($dir, 0777, true);
     }
-    rename($fromPath, $toPath);
 }
 
 //////////////////////////////

grammar/zend_language_parser.phpy

@@ -111,6 +111,13 @@
 %token T_NS_SEPARATOR
 %token T_ELLIPSIS
 
+%{
+use PhpParser\Node\Expr;
+use PhpParser\Node\Name;
+use PhpParser\Node\Scalar;
+use PhpParser\Node\Stmt;
+%}
+
 %%
 
 start:
@@ -164,7 +171,7 @@ constant_declaration_list:
 ;
 
 constant_declaration:
-    T_STRING '=' static_scalar                              { $$ = Const_[$1, $3]; }
+    T_STRING '=' static_scalar                              { $$ = Node\Const_[$1, $3]; }
 ;
 
 inner_statement_list:
@@ -385,9 +392,9 @@ non_empty_parameter_list:
 
 parameter:
       optional_param_type optional_ref optional_ellipsis T_VARIABLE
-          { $$ = Param[parseVar($4), null, $1, $2, $3]; }
+          { $$ = Node\Param[parseVar($4), null, $1, $2, $3]; }
     | optional_param_type optional_ref optional_ellipsis T_VARIABLE '=' static_scalar
-          { $$ = Param[parseVar($4), $6, $1, $2, $3]; }
+          { $$ = Node\Param[parseVar($4), $6, $1, $2, $3]; }
 ;
 
 type:
@@ -409,7 +416,7 @@ optional_return_type:
 argument_list:
       '(' ')'                                               { $$ = array(); }
     | '(' non_empty_argument_list ')'                       { $$ = $2; }
-    | '(' yield_expr ')'                                    { $$ = array(Arg[$2, false, false]); }
+    | '(' yield_expr ')'                                    { $$ = array(Node\Arg[$2, false, false]); }
 ;
 
 non_empty_argument_list:
@@ -418,9 +425,9 @@ non_empty_argument_list:
 ;
 
 argument:
-      expr                                                  { $$ = Arg[$1, false, false]; }
-    | '&' variable                                          { $$ = Arg[$2, true, false]; }
-    | T_ELLIPSIS expr                                       { $$ = Arg[$2, false, true]; }
+      expr                                                  { $$ = Node\Arg[$1, false, false]; }
+    | '&' variable                                          { $$ = Node\Arg[$2, true, false]; }
+    | T_ELLIPSIS expr                                       { $$ = Node\Arg[$2, false, true]; }
 ;
 
 global_var_list: