Support a namespace suffix on Fast Models memory events.

I was just sent a Fast Models Tarmac snippet in which the physical
address field in an MR8 line had an "_NS" suffix. We already supported
this for addresses seen in instruction lines, but this was the first
time I've seen it in a memory read or write. Easily fixed!

Author: statham-arm

lib/parser.cpp

@@ -1027,7 +1027,7 @@ class TarmacLineParserImpl {
                  * virtual addresses, so we ignore the latter.
                  */
                 tok = lex();
-                if (!tok.ishex())
+                if (!tok.ishexwithoptionalnamespace())
                     parse_error(tok, _("expected physical memory address "
                                        "after ':'"));
                 tok = lex();

tests/parsertest.ref

@@ -94,6 +94,8 @@ Parse warning: unsupported system operation 'AT'
 * InstructionEvent time=2 effect=executed pc=1000184c iset=Thumb width=32 instruction=f2c30003 disassembly="MOVT     r0,#0x3003"
 --- Tarmac line: 2 clk cpu0 R r0 3003fe00
 * RegisterEvent time=2 reg=r0 offset=0 bytes=30:03:fe:00
+--- Tarmac line: 180000140000 ps MR8 0000010006fffcc0:010116fffcc0_NS 00000100_05101000
+* MemoryEvent time=180000140000 read=true known=true addr=10006fffcc0 size=8 contents=10005101000
 --- Tarmac line: Tarmac Text Rev 3t
 --- Tarmac line:       17000 ns  ES  EXC [0x00] Reset
 * TextOnlyEvent time=17000 type="EXC" text="[0x00] Reset"

tests/parsertest.txt

@@ -82,6 +82,8 @@
 2 clk cpu0 IT (2) 1000184c f2c30003 T thread_s : MOVT     r0,#0x3003
 2 clk cpu0 R r0 3003fe00
 
+180000140000 ps MR8 0000010006fffcc0:010116fffcc0_NS 00000100_05101000
+
 # ----------------------------------------------------------------------
 # Trace lines seen in multiple samples of broadly Cycle Models
 # flavoured Tarmac