Mark viaIR code generation as non-experimental.

docs/internals/layout_in_storage.rst

@@ -140,8 +140,7 @@ by checking if the lowest bit is set: short (not set) and long (set).
 
 .. note::
   Handling invalidly encoded slots is currently not supported but may be added in the future.
-  If you are compiling via the experimental IR-based compiler pipeline, reading an invalidly encoded
-  slot results in a ``Panic(0x22)`` error.
+  If you are compiling via IR, reading an invalidly encoded slot results in a ``Panic(0x22)`` error.
 
 JSON Output
 ===========

docs/internals/optimizer.rst

@@ -23,7 +23,7 @@ call completely.
 Currently, the parameter ``--optimize`` activates the opcode-based optimizer for the
 generated bytecode and the Yul optimizer for the Yul code generated internally, for example for ABI coder v2.
 One can use ``solc --ir-optimized --optimize`` to produce an
-optimized experimental Yul IR for a Solidity source. Similarly, one can use ``solc --strict-assembly --optimize``
+optimized Yul IR for a Solidity source. Similarly, one can use ``solc --strict-assembly --optimize``
 for a stand-alone Yul mode.
 
 You can find more details on both optimizer modules and their optimization steps below.