[gdb] Fix more typos in comments

Fix typos in comments.  NFC.

Tested on x86_64-linux.

gdb/ChangeLog:

2019-10-18  Tom de Vries  <tdevries@suse.de>

	* aarch64-tdep.c: Fix typos in comments.
	* ada-lang.c: Same.
	* ada-tasks.c: Same.
	* alpha-tdep.c: Same.
	* alpha-tdep.h: Same.
	* amd64-nat.c: Same.
	* amd64-windows-tdep.c: Same.
	* arc-tdep.c: Same.
	* arc-tdep.h: Same.
	* arch-utils.c: Same.
	* arm-nbsd-tdep.c: Same.
	* arm-tdep.c: Same.
	* ax-gdb.c: Same.
	* blockframe.c: Same.
	* btrace.c: Same.
	* c-varobj.c: Same.
	* coff-pe-read.c: Same.
	* coffread.c: Same.
	* cris-tdep.c: Same.
	* darwin-nat.c: Same.
	* dbxread.c: Same.
	* dcache.c: Same.
	* disasm.c: Same.
	* dtrace-probe.c: Same.
	* dwarf-index-write.c: Same.
	* dwarf2-frame-tailcall.c: Same.
	* dwarf2-frame.c: Same.
	* dwarf2read.c: Same.
	* eval.c: Same.
	* exceptions.c: Same.
	* fbsd-tdep.c: Same.
	* findvar.c: Same.
	* frame.c: Same.
	* frv-tdep.c: Same.
	* gnu-v3-abi.c: Same.
	* go32-nat.c: Same.
	* h8300-tdep.c: Same.
	* hppa-tdep.c: Same.
	* i386-linux-tdep.c: Same.
	* i386-tdep.c: Same.
	* ia64-libunwind-tdep.c: Same.
	* ia64-tdep.c: Same.
	* infcmd.c: Same.
	* infrun.c: Same.
	* linespec.c: Same.
	* linux-nat.c: Same.
	* linux-thread-db.c: Same.
	* machoread.c: Same.
	* mdebugread.c: Same.
	* mep-tdep.c: Same.
	* mn10300-tdep.c: Same.
	* namespace.c: Same.
	* objfiles.c: Same.
	* opencl-lang.c: Same.
	* or1k-tdep.c: Same.
	* osabi.c: Same.
	* ppc-linux-nat.c: Same.
	* ppc-linux-tdep.c: Same.
	* ppc-sysv-tdep.c: Same.
	* printcmd.c: Same.
	* procfs.c: Same.
	* record-btrace.c: Same.
	* record-full.c: Same.
	* remote-fileio.c: Same.
	* remote.c: Same.
	* rs6000-tdep.c: Same.
	* s12z-tdep.c: Same.
	* score-tdep.c: Same.
	* ser-base.c: Same.
	* ser-go32.c: Same.
	* skip.c: Same.
	* sol-thread.c: Same.
	* solib-svr4.c: Same.
	* solib.c: Same.
	* source.c: Same.
	* sparc-nat.c: Same.
	* sparc-sol2-tdep.c: Same.
	* sparc-tdep.c: Same.
	* sparc64-tdep.c: Same.
	* stabsread.c: Same.
	* stack.c: Same.
	* symfile.c: Same.
	* symtab.c: Same.
	* target-descriptions.c: Same.
	* target-float.c: Same.
	* thread.c: Same.
	* utils.c: Same.
	* valops.c: Same.
	* valprint.c: Same.
	* value.c: Same.
	* varobj.c: Same.
	* windows-nat.c: Same.
	* xcoffread.c: Same.
	* xstormy16-tdep.c: Same.
	* xtensa-tdep.c: Same.

Change-Id: I5175f1b107bfa4e1cdd4a3361ccb4739e53c75c4

gdb/mdebugread.c

@@ -1993,7 +1993,7 @@ parse_procedure (PDR *pr, struct compunit_symtab *search_symtab,
       s = new_symbol (sh_name);
       SYMBOL_DOMAIN (s) = VAR_DOMAIN;
       SYMBOL_CLASS (s) = LOC_BLOCK;
-      /* Donno its type, hope int is ok.  */
+      /* Don't know its type, hope int is ok.  */
       SYMBOL_TYPE (s)
 	= lookup_function_type (objfile_type (pst->objfile)->builtin_int);
       add_symbol (s, top_stack->cur_st, top_stack->cur_block);
@@ -2442,7 +2442,7 @@ parse_partial_symbols (minimal_symbol_reader &reader,
      (inefficient; 
      assumes no side-effects result from ignoring ECOFF symbol)
      3) create it, but lookup ELF's minimal symbol and use it's section
-     during relocation, then modify "uniqify" phase to merge and 
+     during relocation, then modify "uniquify" phase to merge and
      eliminate the duplicate symbol
      (highly inefficient)
 
@@ -3442,7 +3442,7 @@ parse_partial_symbols (minimal_symbol_reader &reader,
 
 		  /* Usually there is a local and a global stProc symbol
 		     for a function.  This means that the function name
-		     has already been entered into the mimimal symbol table
+		     has already been entered into the minimal symbol table
 		     while processing the global symbols in pass 2 above.
 		     One notable exception is the PROGRAM name from
 		     f77 compiled executables, it is only put out as
@@ -3861,7 +3861,7 @@ psymtab_to_symtab_1 (struct objfile *objfile,
     return;
   pst->readin = 1;
 
-  /* Read in all partial symbtabs on which this one is dependent.
+  /* Read in all partial symtabs on which this one is dependent.
      NOTE that we do have circular dependencies, sigh.  We solved
      that by setting pst->readin before this point.  */