pythongh-145846: Rename variables per reviewer feedback

- Rename 'c' to 'pContext' in clearEntries() loop for consistency
- Rename 'p' to 'profiler' in test_clear_with_nested_calls()

Author: raminfp

Lib/test/test_profiling/test_tracing_profiler.py

@@ -157,12 +157,12 @@ def level2(profiler):
         def level1(profiler):
             level2(profiler)
 
-        p = _lsprof.Profiler()
-        p.enable()
+        profiler = _lsprof.Profiler()
+        profiler.enable()
         for _ in range(100):
-            level1(p)
-        p.disable()
-        p.clear()
+            level1(profiler)
+        profiler.disable()
+        profiler.clear()
 
     def test_bad_descriptor(self):
         # gh-132250

Modules/_lsprof.c

@@ -293,9 +293,9 @@ static void clearEntries(ProfilerObject *pObj)
     pObj->profilerEntries = EMPTY_ROTATING_TREE;
     /* release the memory hold by the ProfilerContexts */
     while (pObj->currentProfilerContext) {
-        ProfilerContext *c = pObj->currentProfilerContext;
-        pObj->currentProfilerContext = c->previous;
-        PyMem_Free(c);
+        ProfilerContext *pContext = pObj->currentProfilerContext;
+        pObj->currentProfilerContext = pContext->previous;
+        PyMem_Free(pContext);
     }
     while (pObj->freelistProfilerContext) {
         ProfilerContext *c = pObj->freelistProfilerContext;