Added empty_contract_via_yul.sol

Removed transaction_status, empty_contract and smoke_test from 
SolidityEndToEnd.cpp
Removed trailing white spaces from empty_contract.sol and 
transaction_status.sol

Author: anurag-git

test/libsolidity/SolidityEndToEndTest.cpp

@@ -64,47 +64,6 @@ int constexpr roundTo32(int _num)
 	return (_num + 31) / 32 * 32;
 }
 
-BOOST_AUTO_TEST_CASE(transaction_status)
-{
-	char const* sourceCode = R"(
-		contract test {
-			function f() public { }
-			function g() public { revert(); }
-			function h() public { assert(false); }
-		}
-	)";
-	compileAndRun(sourceCode);
-	callContractFunction("f()");
-	BOOST_CHECK(m_transactionSuccessful);
-	callContractFunction("g()");
-	BOOST_CHECK(!m_transactionSuccessful);
-	callContractFunction("h()");
-	BOOST_CHECK(!m_transactionSuccessful);
-}
-
-
-BOOST_AUTO_TEST_CASE(smoke_test)
-{
-	char const* sourceCode = R"(
-		contract test {
-			function f(uint a) public returns(uint d) { return a * 7; }
-		}
-	)";
-	compileAndRun(sourceCode);
-	testContractAgainstCppOnRange("f(uint256)", [](u256 const& a) -> u256 { return a * 7; }, 0, 100);
-}
-
-BOOST_AUTO_TEST_CASE(empty_contract)
-{
-	char const* sourceCode = R"(
-		contract test { }
-	)";
-	ALSO_VIA_YUL(
-		compileAndRun(sourceCode);
-		BOOST_CHECK(callContractFunction("i_am_not_there()", bytes()).empty());
-	)
-}
-
 BOOST_AUTO_TEST_CASE(exp_operator)
 {
 	char const* sourceCode = R"(

test/libsolidity/semanticTests/empty_contract.sol

@@ -1,4 +1,4 @@
-	contract test {
-	}
-	// ----
-	// i_am_not_there() -> 
+contract test {
+}
+// ----
+// i_am_not_there() ->

test/libsolidity/semanticTests/functionCall/transaction_status.sol

@@ -4,6 +4,6 @@ contract test {
 	function h() public { assert(false); }
 }
 // ----
-// f() -> 
+// f() ->
 // g() -> FAILURE
 // h() -> FAILURE

test/libsolidity/semanticTests/viaYul/empty_contract_via_yul.sol

@@ -0,0 +1,6 @@
+contract test {
+}
+// ====
+// compileViaYul: true
+// ----
+// i_am_not_there() ->