slightly more telling error message on generic syntax errors

Cython/Compiler/Scanning.py

@@ -419,7 +419,11 @@ class PyrexScanner(Scanner):
         if message:
             self.error(message)
         else:
-            self.error("Expected '%s'" % what)
+            if self.sy == IDENT:
+                found = self.systring
+            else:
+                found = self.sy
+            self.error("Expected '%s', found '%s'" % (what, found))
         
     def expect_indent(self):
         self.expect('INDENT',

tests/errors/cdef_syntax.pyx

@@ -6,5 +6,5 @@ cdef nogil class test: pass
 _ERRORS = u"""
  2: 5: Expected an identifier, found 'pass'
  3: 9: Empty declarator
- 4:11: Expected ':'
+ 4:11: Expected ':', found 'class'
 """

tests/errors/cpdef_syntax.pyx

@@ -5,5 +5,5 @@ cpdef nogil class test: pass
 _ERRORS = u"""
  2: 6: cdef blocks cannot be declared cpdef
  3: 6: cdef blocks cannot be declared cpdef
- 3:12: Expected ':'
+ 3:12: Expected ':', found 'class'
 """

tests/errors/e2_packedstruct_T290.pyx

@@ -2,5 +2,5 @@ cdef packed foo:
     pass
 
 _ERRORS = u"""
-1:12: Expected 'struct'
+1:12: Expected 'struct', found 'foo'
 """