Fix function calls highlighting

Author: 1st1

grammars/MagicPython.cson

@@ -1452,7 +1452,7 @@ repository:
         include: "#illegal-names"
       }
       {
-        match: "\\b([[:alpha:]_]\\w*)\\s*(=)"
+        match: "\\b([[:alpha:]_]\\w*)\\s*(=)(?!=)"
         captures:
           "1":
             name: "variable.parameter.function-call.python"

grammars/MagicPython.tmLanguage

@@ -2332,7 +2332,7 @@ it's not tokenized as ellipsis.
           </dict>
           <dict>
             <key>match</key>
-            <string>\b([[:alpha:]_]\w*)\s*(=)</string>
+            <string>\b([[:alpha:]_]\w*)\s*(=)(?!=)</string>
             <key>captures</key>
             <dict>
               <key>1</key>

grammars/src/MagicPython.syntax.yaml

@@ -973,7 +973,7 @@ repository:
           '2': {name: keyword.operator.unpacking.arguments.python}
       - include: '#lambda-incomplete'
       - include: '#illegal-names'
-      - match: '\b([[:alpha:]_]\w*)\s*(=)'
+      - match: '\b([[:alpha:]_]\w*)\s*(=)(?!=)'
         captures:
           '1': {name: variable.parameter.function-call.python}
           '2': {name: keyword.operator.assignment.python}

test/expressions/expr16.py

@@ -0,0 +1,11 @@
+foo(djsgfjs==123)
+
+
+
+foo           : meta.function-call.generic.python, meta.function-call.python, source.python
+(             : meta.function-call.python, punctuation.definition.arguments.begin.python, source.python
+djsgfjs       : meta.function-call.arguments.python, meta.function-call.python, source.python
+=             : keyword.operator.assignment.python, meta.function-call.arguments.python, meta.function-call.python, source.python
+=             : keyword.operator.assignment.python, meta.function-call.arguments.python, meta.function-call.python, source.python
+123           : constant.numeric.dec.python, meta.function-call.arguments.python, meta.function-call.python, source.python
+)             : meta.function-call.python, punctuation.definition.arguments.end.python, source.python