Unlock functionCode early in function execution to reduce locks needed during recursion (#2616)

Author: gfwilliams

ChangeLog

@@ -24,6 +24,7 @@
             Bangle.js: Added 'bpmMin/bpmMax' and 'activity' to 'health' event and 'Bangle.getHealthStatus'
             Fix potential overflow of locks - favour small memory leak over accidental free if this ever happens (fix #2616)
             micro:bit2: Ensure we don't initialise the I2C1 peripheral (we use software I2C internally)
+            Unlock functionCode early in function execution to reduce locks needed during recursion (#2616)
 
      2v25 : ESP32C3: Get analogRead working correctly
             Graphics: Adjust image alignment when rotating images to avoid cropping (fix #2535)

src/jsparse.c

@@ -839,6 +839,8 @@ NO_INLINE JsVar *jspeFunctionCall(JsVar *function, JsVar *functionName, JsVar *t
             JsLex newLex;
             JsLex *oldLex = jslSetLex(&newLex);
             jslInit(functionCode);
+            jsvUnLock(functionCode); // unlock function code here to reduce amount of locks needed during recursion
+            functionCode = 0;
 #ifndef ESPR_NO_LINE_NUMBERS
             newLex.lineNumberOffset = functionLineNumber;
 #endif