Improve Mustache exception types, catchability.

* Subclass common exception types (runtime, logic, invalid argument).
 * Add new "unknown x" exceptions for filters, helpers and templates.
 * Make all Mustache exceptions implement Mustache_Exception interface… Gotta catch 'em all!

test/Mustache/Test/CompilerTest.php

@@ -85,9 +85,9 @@ class Mustache_Test_CompilerTest extends PHPUnit_Framework_TestCase
     }
 
     /**
-     * @expectedException InvalidArgumentException
+     * @expectedException Mustache_Exception_SyntaxException
      */
-    public function testCompilerThrowsUnknownNodeTypeException()
+    public function testCompilerThrowsSyntaxException()
     {
         $compiler = new Mustache_Compiler;
         $compiler->compile('', array(array(Mustache_Tokenizer::TYPE => 'invalid')), 'SomeClass');

test/Mustache/Test/EngineTest.php

@@ -141,7 +141,7 @@ class Mustache_Test_EngineTest extends PHPUnit_Framework_TestCase
     }
 
     /**
-     * @expectedException InvalidArgumentException
+     * @expectedException Mustache_Exception_InvalidArgumentException
      * @dataProvider getBadEscapers
      */
     public function testNonCallableEscapeThrowsException($escape)
@@ -158,7 +158,7 @@ class Mustache_Test_EngineTest extends PHPUnit_Framework_TestCase
     }
 
     /**
-     * @expectedException RuntimeException
+     * @expectedException Mustache_Exception_RuntimeException
      */
     public function testImmutablePartialsLoadersThrowException()
     {
@@ -223,7 +223,7 @@ class Mustache_Test_EngineTest extends PHPUnit_Framework_TestCase
     }
 
     /**
-     * @expectedException InvalidArgumentException
+     * @expectedException Mustache_Exception_InvalidArgumentException
      */
     public function testSetHelpersThrowsExceptions()
     {
@@ -232,7 +232,7 @@ class Mustache_Test_EngineTest extends PHPUnit_Framework_TestCase
     }
 
     /**
-     * @expectedException InvalidArgumentException
+     * @expectedException Mustache_Exception_InvalidArgumentException
      */
     public function testSetLoggerThrowsExceptions()
     {

test/Mustache/Test/FiveThree/Functional/FiltersTest.php

@@ -67,7 +67,7 @@ class Mustache_Test_FiveThree_Functional_FiltersTest extends PHPUnit_Framework_T
     }
 
     /**
-     * @expectedException UnexpectedValueException
+     * @expectedException Mustache_Exception_UnknownFilterException
      * @dataProvider getBrokenPipes
      */
     public function testThrowsExceptionForBrokenPipes($tpl, $data)

test/Mustache/Test/Loader/ArrayLoaderTest.php

@@ -42,7 +42,7 @@ class Mustache_Test_Loader_ArrayLoaderTest extends PHPUnit_Framework_TestCase
     }
 
     /**
-     * @expectedException InvalidArgumentException
+     * @expectedException Mustache_Exception_UnknownTemplateException
      */
     public function testMissingTemplatesThrowExceptions()
     {

test/Mustache/Test/Loader/FilesystemLoaderTest.php

@@ -44,7 +44,7 @@ class Mustache_Test_Loader_FilesystemLoaderTest extends PHPUnit_Framework_TestCa
     }
 
     /**
-     * @expectedException RuntimeException
+     * @expectedException Mustache_Exception_RuntimeException
      */
     public function testMissingBaseDirThrowsException()
     {
@@ -52,7 +52,7 @@ class Mustache_Test_Loader_FilesystemLoaderTest extends PHPUnit_Framework_TestCa
     }
 
     /**
-     * @expectedException InvalidArgumentException
+     * @expectedException Mustache_Exception_UnknownTemplateException
      */
     public function testMissingTemplateThrowsException()
     {

test/Mustache/Test/Logger/StreamLoggerTest.php

@@ -34,7 +34,7 @@ class Mustache_Test_Logger_StreamLoggerTest extends PHPUnit_Framework_TestCase
     }
 
     /**
-     * @expectedException LogicException
+     * @expectedException Mustache_Exception_LogicException
      */
     public function testPrematurelyClosedStreamThrowsException()
     {
@@ -187,7 +187,7 @@ class Mustache_Test_Logger_StreamLoggerTest extends PHPUnit_Framework_TestCase
     }
 
     /**
-     * @expectedException InvalidArgumentException
+     * @expectedException Mustache_Exception_InvalidArgumentException
      */
     public function testThrowsInvalidArgumentExceptionWhenSettingUnknownLevels()
     {
@@ -196,7 +196,7 @@ class Mustache_Test_Logger_StreamLoggerTest extends PHPUnit_Framework_TestCase
     }
 
     /**
-     * @expectedException InvalidArgumentException
+     * @expectedException Mustache_Exception_InvalidArgumentException
      */
     public function testThrowsInvalidArgumentExceptionWhenLoggingUnknownLevels()
     {

test/Mustache/Test/ParserTest.php

@@ -108,7 +108,7 @@ class Mustache_Test_ParserTest extends PHPUnit_Framework_TestCase
 
     /**
      * @dataProvider getBadParseTrees
-     * @expectedException LogicException
+     * @expectedException Mustache_Exception_SyntaxException
      */
     public function testParserThrowsExceptions($tokens)
     {