The grand language renaming bonanza (#3278)

* Removing FORTRAN samples because OS X case-insensitive filesystems :-\

* Adding Fotran samples back

* FORTRAN -> Fortran

* Groff -> Roff

* GAS -> Unix Assembly

* Cucumber -> Gherkin

* Nimrod -> Nim

* Ragel in Ruby Host -> Ragel

* Jade -> Pug

* VimL -> Vim script

samples/Unix Assembly/hello.ms

@@ -0,0 +1,91 @@
+# output(): Hello, world.\n
+# mach(): all
+
+# Emit hello world while switching back and forth between arm/thumb.
+# ??? Unfinished
+
+	.macro invalid
+# This is "undefined" but it's not properly decoded yet.
+	.word 0x07ffffff
+# This is stc which isn't recognized yet.
+	stc 0,cr0,[r0]
+	.endm
+
+	.global _start
+_start:
+# Run some simple insns to confirm the engine is at least working.
+	nop
+
+# Skip over output text.
+
+	bl skip_output
+
+hello_text:
+	.asciz "Hello, world.\n"
+
+	.p2align 2
+skip_output:
+
+# Prime loop.
+
+	mov r4, r14
+
+output_next:
+
+# Switch arm->thumb to output next chacter.
+# At this point r4 must point to the next character to output.
+
+	adr r0, into_thumb + 1
+	bx r0
+
+into_thumb:
+	.thumb
+
+# Output a character.
+
+	mov r0,#3 @ writec angel call
+	mov r1,r4
+	swi 0xab @ ??? Confirm number.
+
+# Switch thumb->arm.
+
+	adr r5, back_to_arm
+	bx r5
+
+	.p2align 2
+back_to_arm:
+	.arm
+
+# Load next character, see if done.
+
+	add r4,r4,#1
+	sub r3,r3,r3
+	ldrb r5,[r4,r3]
+	teq r5,#0
+	beq done
+
+# Output a character (in arm mode).
+
+	mov r0,#3
+	mov r1,r4
+	swi #0x123456
+
+# Load next character, see if done.
+
+	add r4,r4,#1
+	sub r3,r3,r3
+	ldrb r5,[r4,r3]
+	teq r5,#0
+	bne output_next
+
+done:
+	mov r0,#0x18
+	ldr r1,exit_code
+	swi #0x123456
+
+# If that fails, try to die with an invalid insn.
+
+	invalid
+
+exit_code:
+	.word 0x20026

samples/Unix Assembly/hello.s

@@ -0,0 +1,63 @@
+	.cstring
+LC0:
+	.ascii "Hello World\0"
+	.text
+.globl _main
+_main:
+LFB3:
+	pushq	%rbp
+LCFI0:
+	movq	%rsp, %rbp
+LCFI1:
+	leaq	LC0(%rip), %rdi
+	call	_puts
+	movl	$0, %eax
+	leave
+	ret
+LFE3:
+	.section __TEXT,__eh_frame,coalesced,no_toc+strip_static_syms+live_support
+EH_frame1:
+	.set L$set$0,LECIE1-LSCIE1
+	.long L$set$0
+LSCIE1:
+	.long	0x0
+	.byte	0x1
+	.ascii "zR\0"
+	.byte	0x1
+	.byte	0x78
+	.byte	0x10
+	.byte	0x1
+	.byte	0x10
+	.byte	0xc
+	.byte	0x7
+	.byte	0x8
+	.byte	0x90
+	.byte	0x1
+	.align 3
+LECIE1:
+.globl _main.eh
+_main.eh:
+LSFDE1:
+	.set L$set$1,LEFDE1-LASFDE1
+	.long L$set$1
+LASFDE1:
+	.long	LASFDE1-EH_frame1
+	.quad	LFB3-.
+	.set L$set$2,LFE3-LFB3
+	.quad L$set$2
+	.byte	0x0
+	.byte	0x4
+	.set L$set$3,LCFI0-LFB3
+	.long L$set$3
+	.byte	0xe
+	.byte	0x10
+	.byte	0x86
+	.byte	0x2
+	.byte	0x4
+	.set L$set$4,LCFI1-LCFI0
+	.long L$set$4
+	.byte	0xd
+	.byte	0x6
+	.align 3
+LEFDE1:
+	.subsections_via_symbols