[Sema][NFC] Improve test coverage for builtin operators.

In preparation for D112453.

clang/test/CXX/over/over.built/p10.cpp

@@ -0,0 +1,20 @@
+// RUN: %clang_cc1 -std=c++11 -verify %s -Wno-tautological-compare
+
+struct A{};
+
+template <typename T>
+void f(int i, float f, bool b, char c, int* pi, A* pa, T* pt) {
+  (void)+i;
+  (void)-i;
+  (void)+f;
+  (void)-f;
+  (void)+b;
+  (void)-b;
+  (void)+c;
+  (void)-c;
+
+  (void)-pi; // expected-error {{invalid argument type}}
+  (void)-pa; // expected-error {{invalid argument type}}
+  (void)-pt; // FIXME: we should be able to give an error here.
+}
+

clang/test/CXX/over/over.built/p11.cpp

@@ -0,0 +1,12 @@
+// RUN: %clang_cc1 -std=c++11 -verify %s -Wno-tautological-compare
+
+template <typename T>
+void f(int i, float f, bool b, char c, int* pi, T* pt) {
+  (void)~i;
+  (void)~f; // expected-error {{invalid argument type}}
+  (void)~b;
+  (void)~c;
+  (void)~pi; // expected-error {{invalid argument type}}
+  (void)~pt; // FIXME: we should be able to give an error here.
+}
+

clang/test/CXX/over/over.built/p24.cpp

@@ -0,0 +1,12 @@
+// RUN: %clang_cc1 -std=c++11 -verify %s -Wno-tautological-compare
+
+template <typename T>
+void f(int i, float f, bool b, char c, int* pi, T* pt) {
+  (void)!i;
+  (void)!f;
+  (void)!b;
+  (void)!c;
+  (void)!pi;
+  (void)!pt;
+}
+// expected-no-diagnostics

clang/test/CXX/over/over.built/p4.cpp

@@ -0,0 +1,10 @@
+// RUN: %clang_cc1 -std=c++17 -verify %s -Wno-tautological-compare
+
+void f(int i, bool b) {
+  (void)++i;
+  (void)i++;
+
+  (void)++b; // expected-error {{ISO C++17 does not allow incrementing expression of type bool}}
+  (void)b++; // expected-error {{ISO C++17 does not allow incrementing expression of type bool}}
+}
+

clang/test/CXX/over/over.built/p5.cpp

@@ -0,0 +1,10 @@
+// RUN: %clang_cc1 -std=c++11 -verify %s -Wno-tautological-compare
+
+void f(int i, bool b) {
+  (void)--i;
+  (void)i--;
+
+  (void)--b; // expected-error {{cannot decrement expression of type bool}}
+  (void)b--; // expected-error {{cannot decrement expression of type bool}}
+}
+

clang/test/CXX/over/over.built/p6.cpp

@@ -0,0 +1,23 @@
+// RUN: %clang_cc1 -std=c++11 -verify %s -Wno-tautological-compare
+
+struct A{};
+
+template <typename T>
+void f(int* pi, A* pa, T* pt) {
+  (void)++pi;
+  (void)pi++;
+  (void)--pi;
+  (void)pi--;
+
+  (void)++pa;
+  (void)pa++;
+  (void)--pa;
+  (void)pa--;
+
+  (void)++pt;
+  (void)pt++;
+  (void)--pt;
+  (void)pt--;
+}
+// expected-no-diagnostics
+

clang/test/CXX/over/over.built/p7-ast.cpp

@@ -0,0 +1,12 @@
+// RUN: %clang_cc1 -std=c++17 -ast-dump %s -ast-dump-filter Test | FileCheck %s
+
+struct A{};
+
+template <typename T>
+auto Test(T* pt) {
+  // CHECK: UnaryOperator {{.*}} '<dependent type>' prefix '*'
+  // CHECK-NEXT: DeclRefExpr {{.*}} 'T *' lvalue ParmVar {{.*}} 'pt' 'T *'
+  return *pt;
+}
+
+

clang/test/CXX/over/over.built/p7.cpp

@@ -0,0 +1,12 @@
+// RUN: %clang_cc1 -std=c++11 -verify %s -Wno-tautological-compare
+
+struct A{};
+
+template <typename T>
+void f(int* pi, A* pa, T* pt) {
+  (void)*pi;
+  (void)*pa;
+  (void)*pt;
+}
+// expected-no-diagnostics
+

clang/test/CXX/over/over.built/p8.cpp

@@ -0,0 +1,9 @@
+// RUN: %clang_cc1 -std=c++11 -verify %s -Wno-tautological-compare
+
+template <typename T>
+void f(void(*pf)(), T(*ptf)(T)) {
+  (void)*pf;
+  (void)*ptf;
+}
+// expected-no-diagnostics
+

clang/test/CXX/over/over.built/p9.cpp

@@ -0,0 +1,12 @@
+// RUN: %clang_cc1 -std=c++11 -verify %s -Wno-tautological-compare
+
+struct A{};
+
+template <typename T>
+void f(int* pi, A* pa, T* pt) {
+  (void)+pi;
+  (void)+pa;
+  (void)+pt;
+}
+// expected-no-diagnostics
+