Fix tabs in SolcReferenceFormatterHuman

test/cmdlineTests/message_format_utf16/err

@@ -1,11 +0,0 @@
-Warning: SPDX license identifier not provided in source file. Before publishing, consider adding a comment containing "SPDX-License-Identifier: <SPDX-License>" to each source file. Use "SPDX-License-Identifier: UNLICENSED" for non-open-source code. Please see https://spdx.org for more information.
---> message_format_utf16/input.sol
-
-Warning: Source file does not specify required compiler version!
---> message_format_utf16/input.sol
-
-Warning: Statement has no effect.
- --> message_format_utf16/input.sol:2:58:
-  |
-2 | /* ©©©©ﾩ©©©©© 2017 */ constructor () public { "©©©©ﾩ©©©©©" ; }
-  |                                               ^^^^^^^^^^^^

test/cmdlineTests/message_format_utf16/input.sol

@@ -1,3 +0,0 @@
-contract Foo {
-/* ©©©©ﾩ©©©©© 2017 */ constructor () public { "©©©©ﾩ©©©©©" ; }
-}

test/cmdlineTests/message_format_utf8/err

@@ -0,0 +1,35 @@
+Warning: SPDX license identifier not provided in source file. Before publishing, consider adding a comment containing "SPDX-License-Identifier: <SPDX-License>" to each source file. Use "SPDX-License-Identifier: UNLICENSED" for non-open-source code. Please see https://spdx.org for more information.
+--> message_format_utf8/input.sol
+
+Warning: Source file does not specify required compiler version!
+--> message_format_utf8/input.sol
+
+Warning: Statement has no effect.
+ --> message_format_utf8/input.sol:2:58:
+  |
+2 | /* ©©©©ﾩ©©©©© 2017 */ constructor () public { "©©©©ﾩ©©©©©" ; }
+  |                                               ^^^^^^^^^^^^
+
+Warning: Statement has no effect.
+ --> message_format_utf8/input.sol:6:25:
+  |
+6 |                         "S = π × r²";
+  |                         ^^^^^^^^^^^^
+
+Warning: Statement has no effect.
+ --> message_format_utf8/input.sol:7:39:
+  |
+7 | /* ₀₁₂₃₄⁵⁶⁷⁸⁹ */		"∑ 1/n! ≈ 2.7";                 // tabs in-between
+  |                 		^^^^^^^^^^^^^^
+
+Warning: Statement has no effect.
+ --> message_format_utf8/input.sol:8:30:
+  |
+8 | /* Ŀŏŗėɯ ïƥŝʉɱ */		"μὴ		χεῖρον		βέλτιστον"; // tabs in-between and inside
+  |                  		^^^		^^^^^^		^^^^^^^^^^
+
+Warning: Function state mutability can be restricted to pure
+  --> message_format_utf8/input.sol:12:2:
+   |
+12 | 	function selector() public returns(uint) { // starts with tab
+   | 	^ (Relevant source part starts here and spans across multiple lines).

test/cmdlineTests/message_format_utf8/input.sol

@@ -0,0 +1,15 @@
+contract Foo {
+/* ©©©©ﾩ©©©©© 2017 */ constructor () public { "©©©©ﾩ©©©©©" ; }
+
+    function f() public pure {
+
+                        "S = π × r²";
+/* ₀₁₂₃₄⁵⁶⁷⁸⁹ */		"∑ 1/n! ≈ 2.7";                 // tabs in-between
+/* Ŀŏŗėɯ ïƥŝʉɱ */		"μὴ		χεῖρον		βέλτιστον"; // tabs in-between and inside
+
+    }
+
+	function selector() public returns(uint) { // starts with tab
+		return 0;
+	}
+}