Python: Rename prettyExp => prettyExpr

So we're consistenly using `expr` and not leaving our the `r`.

Author: RasmusWL

python/ql/test/experimental/dataflow/TestUtil/PrintNode.qll

@@ -1,7 +1,7 @@
 import python
 import semmle.python.dataflow.new.DataFlow
 
-string prettyExp(Expr e) {
+string prettyExpr(Expr e) {
   not e instanceof Num and
   not e instanceof StrConst and
   not e instanceof Subscript and
@@ -15,17 +15,17 @@ string prettyExp(Expr e) {
     e.(StrConst).getPrefix() + e.(StrConst).getText() +
       e.(StrConst).getPrefix().regexpReplaceAll("[a-zA-Z]+", "")
   or
-  result = prettyExp(e.(Subscript).getObject()) + "[" + prettyExp(e.(Subscript).getIndex()) + "]"
+  result = prettyExpr(e.(Subscript).getObject()) + "[" + prettyExpr(e.(Subscript).getIndex()) + "]"
   or
   (
     if exists(e.(Call).getAnArg()) or exists(e.(Call).getANamedArg())
-    then result = prettyExp(e.(Call).getFunc()) + "(..)"
-    else result = prettyExp(e.(Call).getFunc()) + "()"
+    then result = prettyExpr(e.(Call).getFunc()) + "(..)"
+    else result = prettyExpr(e.(Call).getFunc()) + "()"
   )
   or
-  result = prettyExp(e.(Attribute).getObject()) + "." + e.(Attribute).getName()
+  result = prettyExpr(e.(Attribute).getObject()) + "." + e.(Attribute).getName()
 }
 
 string prettyNode(DataFlow::Node node) {
-  if exists(node.asExpr()) then result = prettyExp(node.asExpr()) else result = node.toString()
+  if exists(node.asExpr()) then result = prettyExpr(node.asExpr()) else result = node.toString()
 }

python/ql/test/experimental/dataflow/tainttracking/TestTaintLib.qll

@@ -46,6 +46,6 @@ query predicate test_taint(string arg_location, string test_res, string scope_na
     arg_location = arg.getLocation().toString() and
     test_res = test_res and
     scope_name = call.getScope().getName() and
-    repr = prettyExp(arg)
+    repr = prettyExpr(arg)
   )
 }

python/ql/test/experimental/meta/InlineTaintTest.qll

@@ -58,7 +58,7 @@ class InlineTaintTest extends InlineExpectationsTest {
     exists(DataFlow::Node sink |
       any(TestTaintTrackingConfiguration config).hasFlow(_, sink) and
       location = sink.getLocation() and
-      element = prettyExp(sink.asExpr()) and
+      element = prettyExpr(sink.asExpr()) and
       value = "" and
       tag = "tainted"
     )
@@ -84,7 +84,7 @@ query predicate untaintedArgumentToEnsureTaintedNotMarkedAsMissing(
   error = "ERROR, you should add `# $ MISSING: tainted` annotation" and
   exists(DataFlow::Node sink |
     sink = shouldBeTainted() and
-    element = prettyExp(sink.asExpr()) and
+    element = prettyExpr(sink.asExpr()) and
     not any(TestTaintTrackingConfiguration config).hasFlow(_, sink) and
     location = sink.getLocation() and
     not exists(FalseNegativeExpectation missingResult |