Add tests for raw string literals with interpolations

Author: filipsajdak

regression-tests/pure2-raw-string-literal-and-interpolation.cpp2

@@ -0,0 +1,22 @@
+main: () -> int = {
+    i := 42;
+    m : std::map<std::string, int> = ();
+    m["one"] = 1;
+    m["two"] = 2;
+
+    str : std::string = "this is a string";
+
+    raw_str : std::string = R"string(raw string without interpolation)string";
+
+    raw_str_inter : std::string = R"test(this is raw string literal
+that can last for multiple
+lines 
+(i)$ R"(this can be added too)"
+calculations like m["one"] + m["two"] = (m["one"] + m["two"])$ also works
+("at the beginning of the line")$!!!)test";
+
+    std::cout << str << std::endl;
+    std::cout << raw_str << std::endl;
+    std::cout << raw_str_inter << std::endl;
+    std::cout << (R"s((m["one"])$.)s" + R"s((m["two"])$.)s" + R"s((m["three"])$.)s" + R"s((i)$)s") << std::endl;
+}

regression-tests/test-results/apple-clang-14/pure2-raw-string-literal-and-interpolation.cpp.execution

@@ -0,0 +1,9 @@
+this is a string
+raw string without interpolation
+this is raw string literal
+that can last for multiple
+lines 
+42 R"(this can be added too)"
+calculations like m["one"] + m["two"] = 3 also works
+at the beginning of the line!!!
+1.2.0.42

regression-tests/test-results/apple-clang-14/pure2-raw-string-literal-and-interpolation.cpp.output

@@ -0,0 +1,9 @@
+this is a string
+raw string without interpolation
+this is raw string literal
+that can last for multiple
+lines 
+42 R"(this can be added too)"
+calculations like m["one"] + m["two"] = 3 also works
+at the beginning of the line!!!
+1.2.0.42

regression-tests/test-results/clang-12/pure2-raw-string-literal-and-interpolation.cpp.execution

@@ -0,0 +1,35 @@
+
+#define CPP2_USE_MODULES         Yes
+
+#include "cpp2util.h"
+
+
+#line 1 "pure2-raw-string-literal-and-interpolation.cpp2"
+[[nodiscard]] auto main() -> int;
+
+//=== Cpp2 definitions ==========================================================
+
+#line 1 "pure2-raw-string-literal-and-interpolation.cpp2"
+[[nodiscard]] auto main() -> int{
+    auto i {42}; 
+    std::map<std::string,int> m {}; 
+    cpp2::assert_in_bounds(m, "one") = 1;
+    cpp2::assert_in_bounds(m, "two") = 2;
+
+    std::string str {"this is a string"}; 
+
+    std::string raw_str {R"string(raw string without interpolation)string"}; 
+
+    std::string raw_str_inter {R"test(this is raw string literal
+that can last for multiple
+lines 
+)test" + cpp2::to_string(i) + R"test( R"(this can be added too)"
+calculations like m["one"] + m["two"] = )test" + cpp2::to_string(cpp2::assert_in_bounds(m, "one") + cpp2::assert_in_bounds(m, "two")) + R"test( also works
+)test" + cpp2::to_string("at the beginning of the line") + R"test(!!!)test"}; 
+
+    std::cout << std::move(str) << std::endl;
+    std::cout << std::move(raw_str) << std::endl;
+    std::cout << std::move(raw_str_inter) << std::endl;
+    std::cout << (R"s()s" + cpp2::to_string(cpp2::assert_in_bounds(m, "one")) + R"s(.)s" + R"s()s" + cpp2::to_string(cpp2::assert_in_bounds(m, "two")) + R"s(.)s" + R"s()s" + cpp2::to_string(cpp2::assert_in_bounds(std::move(m), "three")) + R"s(.)s" + R"s()s" + cpp2::to_string(std::move(i)) + R"s()s") << std::endl;
+}
+

regression-tests/test-results/clang-12/pure2-raw-string-literal-and-interpolation.cpp.output

@@ -0,0 +1,2 @@
+pure2-raw-string-literal-and-interpolation.cpp2... ok (all Cpp2, passes safety checks)
+