Fix small bug in GasMeter calculation in creation context

Old calculation did not ignore `optimize-runs` parameter, when creation code gas computations were
done. This would lead to expanding values such as `shl(180, 1)` inside constructor code, even for
the default value for `--optimize-runs`, i.e., 200.

libyul/backends/evm/EVMMetrics.h

@@ -43,7 +43,7 @@ public:
 	GasMeter(EVMDialect const& _dialect, bool _isCreation, size_t _runs):
 		m_dialect(_dialect),
 		m_isCreation{_isCreation},
-		m_runs(_runs)
+		m_runs(_isCreation? 1 : _runs)
 	{}
 
 	/// @returns the full combined costs of deploying and evaluating the expression.

test/cmdlineTests/constant_optimizer_yul/args

@@ -0,0 +1 @@
+--optimize --ir-optimized --optimize-runs 1000000

test/cmdlineTests/constant_optimizer_yul/err

@@ -0,0 +1 @@
+

test/cmdlineTests/constant_optimizer_yul/input.sol

@@ -0,0 +1,16 @@
+// SPDX-License-Identifier: GPL-v3
+pragma solidity >= 0.0.0;
+contract C {
+    constructor () {
+        assembly {
+            // This shl should not be evaluated for all values of optimize-runs
+            sstore(0, shl(180, 1))
+        }
+    }
+    fallback() external {
+        assembly {
+            // This shl would be evaluated for high values of optimize-runs
+            sstore(0, shl(180, 1))
+        }
+    }
+}

test/cmdlineTests/constant_optimizer_yul/output

@@ -0,0 +1,30 @@
+Optimized IR:
+/*******************************************************
+ *                       WARNING                       *
+ *  Solidity to Yul compilation is still EXPERIMENTAL  *
+ *       It can result in LOSS OF FUNDS or worse       *
+ *                !USE AT YOUR OWN RISK!               *
+ *******************************************************/
+
+object "C_12" {
+    code {
+        {
+            mstore(64, 128)
+            if callvalue() { revert(0, 0) }
+            sstore(0, shl(180, 1))
+            let _1 := datasize("C_12_deployed")
+            codecopy(0, dataoffset("C_12_deployed"), _1)
+            return(0, _1)
+        }
+    }
+    object "C_12_deployed" {
+        code {
+            {
+                mstore(64, 128)
+                if callvalue() { revert(0, 0) }
+                sstore(0, 0x1000000000000000000000000000000000000000000000)
+                stop()
+            }
+        }
+    }
+}