Yul to EVM assembly json export: Add simple cmdline tests.

test/cmdlineTests/asm_json_export_yul_with_debug/args

@@ -0,0 +1 @@
+--strict-assembly - --asm-json

test/cmdlineTests/asm_json_export_yul_with_debug/stdin

@@ -0,0 +1,50 @@
+/// @use-src 0:"state_var_initialization.sol"
+object "C_23" {
+    code {
+        {
+            /// @src 0:0:125  "contract C {..."
+            let _1 := memoryguard(0x80)
+            mstore(64, _1)
+            if callvalue() { revert(0, 0) }
+            sstore(/** @src 0:33:34  "1" */ 0x00, /** @src 0:56:57  "2" */ 0x02)
+            /// @src 0:0:125  "contract C {..."
+            sstore(/** @src 0:33:34  "1" */ 0x01, 0x00)
+            /// @src 0:0:125  "contract C {..."
+            let _2 := datasize("C_23_deployed")
+            codecopy(_1, dataoffset("C_23_deployed"), _2)
+            return(_1, _2)
+        }
+    }
+    /// @use-src 0:"state_var_initialization.sol"
+    object "C_23_deployed" {
+        code {
+            {
+                /// @src 0:0:125  "contract C {..."
+                let _1 := memoryguard(0x80)
+                mstore(64, _1)
+                if iszero(lt(calldatasize(), 4))
+                {
+                    let _2 := 0
+                    switch shr(224, calldataload(_2))
+                    case 0xb4f40c61 {
+                        if callvalue() { revert(_2, _2) }
+                        if slt(add(calldatasize(), not(3)), _2) { revert(_2, _2) }
+                        mstore(_1, sload(/** @src 0:40:57  "uint public k = 2" */ 1))
+                        /// @src 0:0:125  "contract C {..."
+                        return(_1, 32)
+                    }
+                    case 0xe5aa3d58 {
+                        if callvalue() { revert(_2, _2) }
+                        if slt(add(calldatasize(), not(3)), _2) { revert(_2, _2) }
+                        let _3 := sload(_2)
+                        let memPos := mload(64)
+                        mstore(memPos, _3)
+                        return(memPos, 32)
+                    }
+                }
+                revert(0, 0)
+            }
+        }
+        data ".metadata" hex"a2646970667358221220f04f800086d1bd95dea7e66c53d041963124c118e4dc70bc4b39a50865c2483f64736f6c63430008130033"
+    }
+}

test/cmdlineTests/asm_json_export_yul_without_debug/args

@@ -0,0 +1 @@
+--strict-assembly - --asm-json

test/cmdlineTests/asm_json_export_yul_without_debug/stdin

@@ -0,0 +1,43 @@
+object "C_23" {
+    code {
+        {
+            let _1 := memoryguard(0x80)
+            mstore(64, _1)
+            if callvalue() { revert(0, 0) }
+            sstore(0x00, 0x02)
+            sstore(0x01, 0x00)
+            let _2 := datasize("C_23_deployed")
+            codecopy(_1, dataoffset("C_23_deployed"), _2)
+            return(_1, _2)
+        }
+    }
+    object "C_23_deployed" {
+        code {
+            {
+                let _1 := memoryguard(0x80)
+                mstore(64, _1)
+                if iszero(lt(calldatasize(), 4))
+                {
+                    let _2 := 0
+                    switch shr(224, calldataload(_2))
+                    case 0xb4f40c61 {
+                        if callvalue() { revert(_2, _2) }
+                        if slt(add(calldatasize(), not(3)), _2) { revert(_2, _2) }
+                        mstore(_1, sload(/** @src 0:40:57  "uint public k = 2" */ 1))
+                        return(_1, 32)
+                    }
+                    case 0xe5aa3d58 {
+                        if callvalue() { revert(_2, _2) }
+                        if slt(add(calldatasize(), not(3)), _2) { revert(_2, _2) }
+                        let _3 := sload(_2)
+                        let memPos := mload(64)
+                        mstore(memPos, _3)
+                        return(memPos, 32)
+                    }
+                }
+                revert(0, 0)
+            }
+        }
+        data ".metadata" hex"a2646970667358221220f04f800086d1bd95dea7e66c53d041963124c118e4dc70bc4b39a50865c2483f64736f6c63430008130033"
+    }
+}

test/cmdlineTests/asm_json_import_untagged_jumpdest/err

@@ -1 +1 @@
-Assembly Import Error: JUMPDEST instruction found that was not followed by tag.
+Assembly Import Error: JUMPDEST instruction without a tag