fix(MethodGenerator): Remove trailing space before return-type colon

Signed-off-by: alexchexes <alexchexes@gmail.com>

Author: alexchexes

src/Generator/MethodGenerator.php

@@ -376,7 +376,7 @@ public function generate()
         $output .= ')';
 
         if ($this->returnType) {
-            $output .= ' : ' . $this->returnType->generate();
+            $output .= ': ' . $this->returnType->generate();
         }
 
         if ($this->isAbstract()) {

test/Generator/ClassGeneratorTest.php

@@ -805,7 +805,7 @@ public function someMethod()
      *
      * @return bool
      */
-    protected function withParamsAndReturnType($mixed, array $array, ?callable $callable = null, ?int $int = 0) : bool
+    protected function withParamsAndReturnType($mixed, array $array, ?callable $callable = null, ?int $int = 0): bool
     {
         /* test test */
         return true;

test/Generator/MethodGeneratorTest.php

@@ -127,7 +127,7 @@ public function testCopyMethodSignature()
 
         $methodGenerator = MethodGenerator::copyMethodSignature($ref);
         $target          = <<<'EOS'
-    protected function withParamsAndReturnType($mixed, array $array, ?callable $callable = null, ?int $int = 0) : bool
+    protected function withParamsAndReturnType($mixed, array $array, ?callable $callable = null, ?int $int = 0): bool
     {
     }
 
@@ -373,7 +373,7 @@ public function testSetReturnType()
         $methodGenerator->setReturnType('bar');
 
         $expected = <<<'PHP'
-    public function foo() : \bar
+    public function foo(): \bar
     {
     }
 
@@ -409,7 +409,7 @@ public function testFrom($className, $methodName, $expectedReturnSignature)
     {
         $methodGenerator = MethodGenerator::fromReflection(new MethodReflection($className, $methodName));
 
-        self::assertStringMatchesFormat('%A) : ' . $expectedReturnSignature . '%w{%A', $methodGenerator->generate());
+        self::assertStringMatchesFormat('%A): ' . $expectedReturnSignature . '%w{%A', $methodGenerator->generate());
     }
 
     /**